Yeasmin, Mahmuda, Jannatut Tasnim, Arifa Akram, Md Abdullah Yusuf, AKM Shamsuzzaman, Md Maruf Molla, and Asish Ghosh. “Routes of Transmission of Newly Emerging SARS-CoV-2: A Systematic Review”. Bangladesh Journal of Infectious Diseases 7 (April 24, 2020): S18-S31. Accessed January 28, 2021. https://www.banglajol.info/index.php/BJID/article/view/46797.